Home / 740,780.28-1,111,170.84-208,301.31

Finding the Fourth Proportional to 740,780.28, 1,111,170.84 and 208,301.31

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Solution

The fourth proportional to 740,780.28, 1,111,170.84 and 208,301.31 is: 312,452.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,780.28 : 1,111,170.84 = 208,301.31 : x
  2. Step 2: Convert to fraction form
    740,780.28/1,111,170.84 = 208,301.31/x
  3. Step 3: Cross multiply
    740,780.28x = 1,111,170.84 × 208,301.31
  4. Step 4: Simplify right side
    740,780.28x = 231,458,341,605.80
  5. Step 5: Solve for x
    x = 231,458,341,605.80/740,780.28
  6. Step 6: Final answer
    x = 312,452.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.